单选题
发布日期:2021-10-29
观察实验
验证性实验
探究性实验
设计和制作实验
生物实验是指在特定的环境条件下,运用一定的仪器、材料和药品,通过科学方法,有目的地观察研究一般情况下不易观察到的生物体结构和生命活动现象的过程。生物学是一门以实验为基础的自然科学。通过生物实验,不仅能帮助学生理解生物学的概念和规律,真正学好生物学基础知识,而且有利于启发学生积极思维,进行科学方法训练,培养学生的科学素质。
还原糖是指具有还原性的糖类。在糖类中,分子中含有游离醛基或酮基的单糖和含有游离醛基的二糖都具有还原性。还原性糖主要有葡萄糖、果糖、半乳糖、乳糖、麦芽糖等。
从个体发育上说,是受精卵细胞的分裂,产生许多细胞。这些细胞开始的形态、结构和功能是相同的,以后经过细胞的分化,逐渐形成各种不同的形态,具有不同的功能。它们进而形成不同的细胞群,就是组织。所以说,组织是细胞分化的结果。
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高中生物实验“生物组织中还原糖的鉴定”属于()。
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高中生物课程基本理念提出要重视生物科学素养,请简述生物科学素养的内涵,并简述高中生物课程的基本理念。
高中生物课程基本理念提出要重视生物科学素养,请简述生物科学素养的内涵,并简述高中生物课程的基本理念。
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下列关于高中生物课程的有关叙述,正确的是()。
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实验室方面的生物安全